First we'll do two basic steps. Step 1 is to subtract 18 from both sides. After that, divide both sides by 2 to get x^2 all by itself. Let's do those two steps now
2x^2+18 = 10
2x^2+18-18 = 10-18 <<--- step 1
2x^2 = -8
(2x^2)/2 = -8/2 <<--- step 2
x^2 = -4
At this point, it should be fairly clear there are no solutions. How can we tell? By remembering that x^2 is never negative as long as x is real.
Using the rule that negative times negative is a positive value, it is impossible to square a real numbered value and get a negative result.
For example
2^2 = 2*2 = 4
8^2 = 8*8 = 64
(-10)^2 = (-10)*(-10) = 100
(-14)^2 = (-14)*(-14) = 196
No matter what value we pick, the result is positive. The only exception is that 0^2 = 0 is neither positive nor negative.
So x^2 = -4 has no real solutions. Taking the square root of both sides leads to
x^2 = -4
sqrt(x^2) = sqrt(-4)
|x| = sqrt(4)*sqrt(-1)
|x| = 2*i
x = 2i or x = -2i
which are complex non-real values
Choice A : 3.49/25 = 0.139 rounds to 14 cents per oz
choice B ; 4.79/40 = 0.119 rounds to 12 cents per oz
lowest price is choice B
The answer is the first one!
Answer:
There are no values of x that make the equation true
The system has no solution
Step-by-step explanation:
we have
Solve for x
Subtract x both sides
-----> is not true
therefore
Is a inconsistent system
There are no values of x that make the equation true
The system has no solution
Answer:
Step-by-step explanation:
Point-slope form is denoted by: , where is the point and m is the slope.
Here, we know that our point is (6, -1) and the slope is -13. That means that , , and m = -13. So plug these in:
And, that's the answer: .
<em>~ an aesthetics lover</em>